UserActivitySessionHistoryItem 類別

定義

命名空間:

Windows.ApplicationModel.UserActivities

提供使用者參與特定活動的開始和結束時間。

public ref class UserActivitySessionHistoryItem sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 393216)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class UserActivitySessionHistoryItem final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 393216)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class UserActivitySessionHistoryItem

Public NotInheritable Class UserActivitySessionHistoryItem

繼承

Object Platform::Object IInspectable UserActivitySessionHistoryItem

屬性

ContractVersionAttribute MarshalingBehaviorAttribute

Windows 需求

裝置系列	Windows 10, version 1803 (已於 10.0.17134.0 引進)
API contract	Windows.Foundation.UniversalApiContract (已於 v6.0 引進)

範例

private async void GetMostRecentActivity()
{
    UserActivityChannel channel = UserActivityChannel.GetDefault();

    // Gets the 10 most recently engaged UserActivity objects, sorted by engagement EndTime (null EndTimes sort first)
    IList<UserActivitySessionHistoryItem> recentActivity = await channel. GetRecentUserActivitiesAsync(maxUniqueActivities: 10);

    foreach (var activity in recentActivity)
    {
        var engagements = await channel.GetSessionHistoryItemsForUserActivityAsync(activity.UserActivity.ActivityId, new DateTimeOffset(DateTime.Now, TimeSpan.FromDays(1)));

        long totalEngagementTime = 0;
        foreach(var e in engagements)
        {
            if (e.EndTime != null) // EndTime may be null for active UserActivities
            {
                totalEngagementTime += e.EndTime.Value.Ticks - e.StartTime.Ticks);
            }
            // App specific code to display the activity engagement time
        }
    }
}

備註

許多應用程式提供最近使用的 (MRU) 清單。 這個類別提供 UserActivity 的開始和結束時間資訊，讓您可以為使用者活動提供類似的體驗。

屬性

EndTime	取得使用者停止參與與此UserActivitySessionHistoryItem相關聯的UserActivity的時間。
StartTime	取得使用者開始參與與此UserActivitySessionHistoryItem相關聯的UserActivity的時間。
UserActivity	取得與此UserActivitySessionHistoryItem相關聯的UserActivity。